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-rw-r--r--Documentation/sound/alsa/HD-Audio.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt
index a4e5ef87af6..99958be7b45 100644
--- a/Documentation/sound/alsa/HD-Audio.txt
+++ b/Documentation/sound/alsa/HD-Audio.txt
@@ -391,6 +391,14 @@ clear::
Resets the codec, removes the mixer elements and PCM stuff of the
specified codec, and clear all init verbs and hints.
+For example, when you want to change the pin default configuration
+value of the pin widget 0x14 to 0x9993013f, and let the driver
+re-configure based on that state, run like below:
+------------------------------------------------------------------------
+ # echo 0x14 0x9993013f > /sys/class/sound/hwC0D0/user_pin_configs
+ # echo 1 > /sys/class/sound/hwC0D0/reconfig
+------------------------------------------------------------------------
+
Power-Saving
~~~~~~~~~~~~